The key to success is to be giving exceptional experience to anyone becoming a fan of your club over a long period of time. There is very minimal focus on making a sale or self promotion, and a large focus on solving the problems of your followers with useful free information. Think of it like building a friendship you want to have for years. It is built on trust, respect and mutual value to both parties. You are supplying trusted information that solves your new friends' needs, which they v...
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Can you provide a test code please. To test the circuit as I do not intend to use the board as a laser. I think a laser is dangerous without protective acrylic sheets around it and protective glasses. I ordered your board but struggle to follow the pinout. Everyone can make the mechanics you describe very well, but when it comes to installing software at the end and running the device you instructions fall short.

Thank you for picking up on that. While a reversible Led does work and lights up green or red when the polarity is reversed, it would not work at the end of the circuit and would need to be placed at the input of the circuit with a resistor. Also a diode can be added to protect the circuit from reverse polarity. Adding a diode would give a power loss of 0.7V. I am made appropriate changes.

I found out the answer to my own question. The input voltage comes in to the chip after the 12R resistor and together with the 470uF capacitor it eliminates humming or feedback noices from the power supply.

In the original zx-sound design the power supply takes effect after the R& resistor with a value of 12R. Is that left out purposely? Otherwise thanks for sharing. Just what I was looking for. Did you add tags as you are hard to find . I always use google to find you again.

My mancave is too hot and I like to know the Temp inside. I had all the part and liked this design very much. I used a 7.4V Battery . I have to calculate how long it would last. I used a 5v DC DC converter with a 250mA resettable fuse. All it would need is a low voltage battery cut out switch that the battery does not get damaged.

No, the software is not written as data logger and has no card to write to. I use a 5V powerbank battery.

Always wanted to make this, now it is complete....finally. Only took me two years to get started. Messy looking wiring, but. Thanks for all your inspirations. I connected the sensor to 3.3 volt on the arduino and it works. While some sellers say it works from 3.6V to 5V or some say to 6V.

I am on vacation to China where YouTube is not working due to government restrictions.But as I look at the Arduino code first anyway, I can see that it is only a test code from Adafruit and therefor not a project I would build. I do appreciate the effort put into this instructable with 3D printing.

I also fixed the INIT error by updating all Liquid Crystal Libraries. The display needs adjusting to show the letters correctly. My LCD at first did not work till I attend the 10K pull-up resistor. Now the rotary encoder does not work. The one in the description is different from the Keys one in the Video that has resistors in it. When I had seen that all was connected to a 12-volt battery but the circuit diagram displays all 5-volt inputs. The Schmidt trigger 74C14N has a Voltage Range of 2 V to 6 V. But no 7805 or dc-dc converter is in the circuit diagram.All up I spent two days on this and like it as I am confident to get it going. Good design. DANKE Great Scott. GUT GEMACHT. (Well done)

This may be my problem and I have to add more to replicate the keys rotary switch. Too tired now. More another day.

//you need to include this to make a piezo run that does not buzz by itself.// the 100 means the Arduino reads the value between 0 and 1024 or 5 to 0 volt.// if (sensorValue < 100) if sensor reads less then 100 then do {tone(12,300,500); delay(600);}// 12=pin 300 sound note ,600 minus (500 sound time) makes a delay of 100 milliseconds.int piezoPin =12;int sensorValue = 0; void setup() { // put your setup code here, to run once:}void loop() { // put your main code here, to run repeatedly: if (sensorValue < 100){tone(12,300,500);delay(1000); } else if (piezoPin = LOW); }//this sketch compiles

Great idea, will make one as it is really annoying that my NEW Autowind SEIKO watch I purchased does not run the next day. Resetting the calendar is too time-consuming every morning when in a hurry to go to work. I made a new instructable on how to program the Tiny. Perhaps this is simple and helpful.https://www.instructables.com/id/Programming-ATtinys-Micro-Controllers-With-Arduino/

thank's for that comment.I could find it on eBay and ordered it finished instead of making this one. The box is usually the most difficult and for $75 AUS it was a good buy as parts alone come close to that.

Just what I am looking for. Comes at the right time as my interest is changing from electronics to film making and pod-casting just as you do, but teaching different skills. I start at the software and work back. The library for the LCD is missing in my new PC, but I find it. Good quality Instructable in clear detail and professional videos. You must do this full time as I know how long it takes. It is a complete easy to follow project for the semi experienced. Thank you for your GREAT EFFORT.

So you joined a year after my instructable saying I said things about you?

I plant whatever is in season. Lucky for me I can plant all year around in this Queensland climate of Australia. But the constant sun has one drawback . The soil dries out fast. That is why I need sensors here.

Having another look at the antenna calculator it seems it only measures from 0 MHz range, designed for TV antennas. This was my first instructable I knocked up while I was experimenting with the subject and it had the best response from all of them. People asked me where to purchase the kit. So I am in the process of making a web site www.arduinomaster.com.au with kits, tutorials and videos in one place.